Synthesis of genotoxic heterocyclic amines Trp-P-1 and Trp-P-2
摘要:
Trp-P-1 (1a) and Trp-P-2 (1b) possessing a pyrido[4,3-b]indole system have been newly synthesized. The key reaction step in the synthetic sequence has been the thermal electrocyclic reaction of the 1-azahexa-1,3,5-triene system 3 involving the indole [b] bond derived from 2-vinylindoles 4. 2-Vinylindole 4a has been derived from N-(benzenesulfonyl)indole (5) in a four-step sequence. 2-Vinylindole 4b has been synthesized by two routes using either ethoxymethylidene Meldrum's acid (6b) or diethyl ethoxymethylidenemalonate (10) as Michael acceptors to the 2-lithio-N-(benzenesulfonyl)indole.
Synthesis of genotoxic heterocyclic amines Trp-P-1 and Trp-P-2
摘要:
Trp-P-1 (1a) and Trp-P-2 (1b) possessing a pyrido[4,3-b]indole system have been newly synthesized. The key reaction step in the synthetic sequence has been the thermal electrocyclic reaction of the 1-azahexa-1,3,5-triene system 3 involving the indole [b] bond derived from 2-vinylindoles 4. 2-Vinylindole 4a has been derived from N-(benzenesulfonyl)indole (5) in a four-step sequence. 2-Vinylindole 4b has been synthesized by two routes using either ethoxymethylidene Meldrum's acid (6b) or diethyl ethoxymethylidenemalonate (10) as Michael acceptors to the 2-lithio-N-(benzenesulfonyl)indole.
Deoxycarbazomycin B has been synthesized in a four step sequence. The key reaction has been the thermal electrocyclic reaction of 1,3,5-hexatriene system involving the indole 2,3-bond.
HIBINO, SATOSHI;SUGINO, EIICHI;OGURA, NAOKI;SHINTANI, YOHKO;SATO, KOHICHI, HETEROCYCLES, 30,(1990) N, C. 271-273
Trp-P-1 (1a) and Trp-P-2 (1b) possessing a pyrido[4,3-b]indole system have been newly synthesized. The key reaction step in the synthetic sequence has been the thermal electrocyclic reaction of the 1-azahexa-1,3,5-triene system 3 involving the indole [b] bond derived from 2-vinylindoles 4. 2-Vinylindole 4a has been derived from N-(benzenesulfonyl)indole (5) in a four-step sequence. 2-Vinylindole 4b has been synthesized by two routes using either ethoxymethylidene Meldrum's acid (6b) or diethyl ethoxymethylidenemalonate (10) as Michael acceptors to the 2-lithio-N-(benzenesulfonyl)indole.